msm1267 writes: The Tallinn Manual is a NATO commissioned project to determine how international law applies to cyberspace in times of war. Tallinn Manual editor Michael N. Schmitt of the U.S. Naval War College explains how the 300-page manual will be a reference manual as states adopt their own cyberwar rules of engagement.The document was nearly four years in the making, and focused exclusively on what Schmitt said were the upper layers of severity, rather than day to day attacks such as cybercrime, intellectual property theft and APT-style espionage; version 2.0 of the Tallinn Manual will attempt to tackle those areas, he said.